Recently, I have been trying to customize my own Facebook Page and have found this great tutorial on how to customize your Facebook Page!
The author details the use of FBML Static Page App that helps you to add your own custom code:
Do a search for “static FBML” on Facebook (or just click here), and click “Add to my Page” in the upper-left. A dialog pop-over will appear with a list of Pages you administer. Select the Page you want to customize by clicking the “Add to Page” but